<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <title>The DatePeriod class</title>

 </head>
 <body><div class="manualnavbar" style="text-align: center;">
 <div class="prev" style="text-align: left; float: left;"><a href="dateinterval.format.html">DateInterval::format</a></div>
 <div class="next" style="text-align: right; float: right;"><a href="dateperiod.construct.html">DatePeriod::__construct</a></div>
 <div class="up"><a href="book.datetime.html">Date/Time</a></div>
 <div class="home"><a href="index.html">PHP Manual</a></div>
</div><hr /><div id="class.dateperiod" class="reference">

 <h1 class="title">The DatePeriod class</h1>
 

 <div class="partintro"><p class="verinfo">(PHP 5 &gt;= 5.3.0)</p>


  <div class="section" id="dateperiod.intro">
   <h2 class="title">简介</h2>
   <p class="para">
    Represents a date period.
   </p>
   <p class="para">
    A date period allows iteration over a set of dates and times, recurring at
    regular intervals, over a given period.
   </p>
  </div>


  <div class="section" id="dateperiod.synopsis">
   <h2 class="title">类摘要</h2>


   <div class="classsynopsis">
    <div class="ooclass"></div>


    <div class="classsynopsisinfo">
     <span class="ooclass">
      <strong class="classname">DatePeriod</strong>
     </span>
     
     <span class="oointerface">implements 
      <span class="interfacename"><strong class="interfacename">Traversable</strong></span>
     </span>
     {</div>

    <div class="classsynopsisinfo classsynopsisinfo_comment">/* 常量 */</div>
    <div class="fieldsynopsis">
     <span class="modifier">const</span>
     <span class="type">integer</span>
      <var class="fieldsynopsis_varname"><a href="class.dateperiod.html#dateperiod.constants.exclude-start-date"><var class="varname">EXCLUDE_START_DATE</var></a></var>
     <span class="initializer"> = 1</span>
    ;</div>

    
    <div class="classsynopsisinfo classsynopsisinfo_comment">/* 方法 */</div>
    <div class="constructorsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><a href="dateperiod.construct.html" class="methodname">__construct</a></span>
    ( <span class="methodparam"><span class="type"><a href="class.datetime.html" class="type DateTime">DateTime</a></span> <code class="parameter">$start</code></span>
   , <span class="methodparam"><span class="type"><a href="class.dateinterval.html" class="type DateInterval">DateInterval</a></span> <code class="parameter">$interval</code></span>
   , <span class="methodparam"><span class="type">int</span> <code class="parameter">$recurrences</code></span>
   [, <span class="methodparam"><span class="type">int</span> <code class="parameter">$options</code></span>
  ] )</div>
<div class="constructorsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><a href="dateperiod.construct.html" class="methodname">__construct</a></span>
    ( <span class="methodparam"><span class="type"><a href="class.datetime.html" class="type DateTime">DateTime</a></span> <code class="parameter">$start</code></span>
   , <span class="methodparam"><span class="type"><a href="class.dateinterval.html" class="type DateInterval">DateInterval</a></span> <code class="parameter">$interval</code></span>
   , <span class="methodparam"><span class="type"><a href="class.datetime.html" class="type DateTime">DateTime</a></span> <code class="parameter">$end</code></span>
   [, <span class="methodparam"><span class="type">int</span> <code class="parameter">$options</code></span>
  ] )</div>
<div class="constructorsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><a href="dateperiod.construct.html" class="methodname">__construct</a></span>
    ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$isostr</code></span>
   [, <span class="methodparam"><span class="type">int</span> <code class="parameter">$options</code></span>
  ] )</div>

    

   }</div>


  </div>
  

  <div class="section" id="dateperiod.constants">
   <h2 class="title">预定义常量</h2>
   <dl>

    
     <dt id="dateperiod.constants.exclude-start-date"><strong><code>DatePeriod::EXCLUDE_START_DATE</code></strong></dt>

     <dd>

      <p class="para">Exclude start date, used in <span class="function"><a href="dateperiod.construct.html" class="function">DatePeriod::__construct()</a></span>.</p>
     </dd>

    

   </dl>

  </div>



 </div>

 








<h2>Table of Contents</h2><ul class="chunklist chunklist_reference"><li><a href="dateperiod.construct.html">DatePeriod::__construct</a> — Creates a new DatePeriod object</li></ul>
</div>
<hr /><div class="manualnavbar" style="text-align: center;">
 <div class="prev" style="text-align: left; float: left;"><a href="dateinterval.format.html">DateInterval::format</a></div>
 <div class="next" style="text-align: right; float: right;"><a href="dateperiod.construct.html">DatePeriod::__construct</a></div>
 <div class="up"><a href="book.datetime.html">Date/Time</a></div>
 <div class="home"><a href="index.html">PHP Manual</a></div>
</div></body></html>
